HP StorageWorks XP24000 User Manual page 22

is complete, the pair status changes to split, and you can access the split T-VOL. The
update copy operation is not performed on the pairs which status is split.
If the HP disk array cannot maintain duplex status for any reason, or if you suspend the
pair, the pair status changes to suspend.
4. When you start a pairresync operation, the pair status changes to resync or resync-r. When
the pairresync operation is complete, the pair status changes to Duplex.
When you specify reverse or quick restore mode for a pairresync operation, the pair status changes
to resync-r (data is copied in the reverse direction from the T-VOL to the S-VOL). For details on the
settings of the pairresync operation, see
When you delete a pair, the status of the volumes that were used by that pair changes to Simplex.
You cannot delete the pair which status is V-Split.
Table 2 (page 22)
Table 2 ShadowImage for Mainframe Pair Status
Status
Simplex
Pending
Duplex
22 About ShadowImage for Mainframe Operations
"Resynchronize Pair Operations" (page
lists and describes the SIz pair status conditions.
Description
The volume is not S-VOL = SIMPLEX
assigned to an SIz
T-VOL = SIMPLEX
pair. The XP storage
system accepts read
and write I/Os for all
simplex volumes that
are not reserved.
The pair create S-VOL = PPRI-PNDG
operation has been
T-VOL = PSEC-PNDG
accepted normally.
The initial copy
operation is
1
executed. No update
copy operations are
performed.
The initial copy S-VOL = PPRIMARY
operation is complete,
T-VOL = PSECONDRY
and the XP storage
system starts
performing
asynchronous update
copy operations from
the S-VOL to the T-VOL
as needed. The S-VOL
and T-VOL of a duplex
pair may not be
identical.
Host Status S-VOL Access
N/A (there is no
S-VOL yet).
Read/write-enabled
Read/write-enabled
15).
T-VOL Access
N/A (there is no
T-VOL yet).
If the volume is
reserved as a T-VOL,
the storage system
does not accept read
and write I/Os.
Read/write-disabled
Read/write-disabled